
import sys
import numpy
import matplotlib.pyplot as plt

if len(sys.argv)<2:
    sys.exit(0)
fn=sys.argv[1]
if fn.endswith(".txt"):
    x=numpy.loadtxt(fn)
else:
    x = numpy.load(fn)

n=numpy.arange(10)
plt.plot(n,x[:,0:10].T)
plt.show()
